Window lock



Feb. '23 1926.

M. J. SASGEN ET AL WINDOW LOCK Filed July 2 euren.

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savant i MICHAL' J. SASGEN AND LUI SIJIONSEN, 0F CvtCAG-Q, .Tilli-ilNCPIS, ASSIG-NORS TO GR AND NOS.

SPECIALTIES COMPANY, OF CHCAG- lfilliNOS, CQRPOELATION OF LLL' wrnnovv Locri.

Application filed July 2,

To @YZ 'ic/Om t' may concern.'

Be it lniown that we, MICHAL J. SAsenN and Louis Sirionssn, citizens of the United States, and residents of jdhicagopin the 5V county of vvCook and State offlllinoisyhave invented certain new and useful improvements in a Window Lock, of which the following is aspecification. i

Our inventionrelates to improvements in window locks and has special reference to the provision of a windowy lock of simple construction which shallbe capable of being manufactured a'relatively low cost ;v which shall be capable of adjustment withina limited amount to ht windows having` frames of differentthicknesses; which shall be provided with a non-marring friction shoe; which sha-ll efectively prevent the opening of either theupper sash or the lower sash beyond the set amount; and which shall be associated with a iii/red stop or projectieih so arranged thatl when the lower sash is low` ered to its closed position the device will automatically be thrownto its locking posir tion.

A particular feature of our invention re lates to the easeof adjustment of the strut to ht different windows. l

Qur invention will be more readily understoood by reference to the accompanying ldrawings forming part of this specification and in which i Figure 1, is a fragmentary vertical eeetion of a window equipped with a lool; made in accordance with our invention.

Figure 2, is a fragmentary elevatioi'i of the inner side of the window.

Figure 3, is atop plan view of the lock.

Figure 4, is a longitudinal section thru the arm of lock on the line 1 -4i of Figure 15 and Figure 5, is a cross .section on the line iof Figure 1.

As shown in the drawings, our improved window lock is particularly adapt-ed to be secured upon the top rail or bar of the lower sash and to engage the upper sash so that when the lock is in operative position the two sashes cannot be moved toward each other even though one or vthe other isV more or less open, while 0n the other hand the sashes can be moved to separate them, In other words the window cannot be` opened ieee. sei-iai no. cional.

beyond the locked relation'but may beclosed.

of the upper sash yto`braee thetwo sae/hes against movement toward each other.

Preferablythe arm or strut 1 1s mounted at one' `enden a pivot 2 secured in a haseV 'member 3. -Thebase member 3 is formed of sheet metal and has a iiat ybottom 'Ll-:to .restjupon the` top` bar 5 of the lower sash 6 and is provided withV a down-turijied outer end 7 for contact with the Vface of the bar 5. rlhe bar `is provided in the inner end of the bottom l with a hole ,for receiving a fastoning vscrew 8 and the down-turned outer end is providedwith a hole for a second tastening screw 9.

' Nearthe outer endof the base we proide a pair of upstanding projections 1G formed Y up out of the metal of the base and which carries the pivot 2 which uispreferalilyin `the form of a removable screw.l Preferably the portions out of which the projections 10 are formed are bent inwardly closet-J the top surface of the base ll and then upwardly, as best shown in Figure 2, the upper parts being parallel and spread apart justy suf-a icient to receive the strut 1 between them.

The strutl is preferably though not necessarily made adjustable as to K length so that in applying the device to a window the free end ofthe strut can be properly engaged with the upper sash when the base is the down-turned outer end in Contact with the face of the lower sash, as shown 1n Figure 1.

For une aajustabnay We preferably ,make

properly attached to the lower sash with I the strutl of a single thicknessmeinl'ner117 A,

one end of whichis pivotally mounted on the pivot 2 between the projections V10 and the other end of which is provided along its vlongitudinal center line with a series of holes 12. io complete the strut 1 we provide a bifurcated member 13 adapted to be secured to the free end of the arm 11 and preferably provided with a shoe or pad 111 which l prefer to make slightly yielding for frictionally engaging the upper sash. The

can be readily changed as toflength. In the f drawings we have shown the strut as short as it can -be made, and itwill be readily seen that it can be lengthened by removing the screws 16, sliding the part 13 outwardly and entering the screws again through. other holes inthe arm 11. 1

As shown, we preferably curve the strut edgewise to cause the engagingface 17 of the strut to properly contact with the upper -A sash and'in consequence of this the series ofV fastening holes in the armv 11 and the 'member 13' are likewise on a curved. line, substantially following thel longitudinal central line offthe strut.

7e preferably slightly curve the contacting face 17 of the end of the strut and provide it with transverse V-ridges 1S to assist tlie gripping of the upper sash;

In securing the yielding shoe 14 onthe end'of the member 18 we preferably form it and secure it by the well known vulcanizing process, forming it to enclose the free end ofthe member 13 which rendis prefer ably made widerl than the body, as best shown in Figure 4. n The curved strut besides setting the free vendproperly against the upper sash assists in automatically throwing the device to locking position when the lower sash is being'lowered'to its closed position. For this purposewe provide av stop 19 secured to the window frame and' projection out into the path of'thev strut. when the saine is swung vout to inoperative position, as shownatQO.

For instance, suppo'sethat the lower sash has been raised to the position show n at 21 andthe strut thrown to locking position, as

shown at- 22, the two vsashes will'be locked against movement toward each' otherV but will be free to be moved relatively apart, in other words the'lower sash can be readily closed, as the strut will .swing freely up. blow we will. presume that the strut has been swung out to the inoperative position, as shown at 20, and when the strut is 1n this inoperative position,.should the lower sash be lowered to closed position, the strut will'coine in contact with the projection 19 and will vbe caused to swing over .toward` thek upper sash. The projectingconvex back ofi the strut, as illustrated bythe dottedline 23,'.will cause the strut to bev pushed7 over far enough so that it will drop automatically into locking position and prevent the window being openedv without Y,first lifting the strut. VThe strut being curved f as. described permits the strut to be swung back, while the lower sash is `in the closed position, and rest in such operative position against the stop projection 19, as shown in dotted linesv in Figure 1; The pivot il being readily removable permits the readyadjustment of the length of the strut to fit a window' to which it is being? applied. The removal ofth'e vpivotA 2 permits the removal of the strut and while removed it can readily be lengthened oi' shortened to suit.V

As many` modifications of our invention will'readily suggest themselves to one skilled in the art, we donot limitor'confine our invent-ion to the specific' details of construe* "i ,y part above the lower sash for preventing the free raising of the sash, the strut being made of two partsand means for connecting the two parts in different longitudinalrelations for changing the length of the strut.

In a window lock ofthe kinddescribed, a stiff stiut adapted to -be pivotally mounted upon the lowersash, the strut provided with a yielding pad for frictional contact with a part above the lower sash for preventing the free raising ofthe sash, the strut being made of two parts, the two part-s each having a series of holes for receiving connectors and adapting the two parts to be secured together in different relations for adjusting the length ofthe strut.

4. Ina window lock of the kind described, a locking'strut adapted tobepivoted to the top ofthe lower sash to swing' from and toward the'upper sash, and means for automatically causing the strut to be swung 'over into contact with the upperl sash as the lower sash is brought down to its closed position.

5. In a window lock of the kind described, r a window lock comprising a strut adaptedlto brought down to closed position, and cause same to be thrown over into operative posi-V Y ner edge of the lower sash, the free end of the strut adapted to frietionally Contact with the side member of the upper sash, a ixed stop on the window frame in the path of,

the strut when thrown out of operative position and adapted to engage the Convex curved edge of the strut as the lower sash is brought downto closed position; to swing the strut over toward the upper sash into unbalaneedveondition, as and for the purpose specified.

7 In a window look ofthe kind described, a base adapted to be secure-d on the top of the top `rail of a lower sash `a strut, means 20 for removably -pivotallylnounting the strut on the base close tol the inner face of the v saidrail, the free end of the strut adapted Y to frietionally Contact with the upper sash,

and meansv for adjusting the length ofthe 25 l Signed at Chicago, Illinois, this 23rd day kof June, 1923. i Y

MICHAL J. SASGEN.` LOUIS SIMONSEN. 

